base ring

短语词组

短语

• base -ring and frame-ring 基础环
• schiff base macro ring 席夫碱大环
• extension of base field ring 扩张环
• turret base ring [军]炮塔座圈
• lug base ring 凸耳座环
• gnathosomal base ring 颚基环
• base ring detail 底套圈
• ring base 环形基础
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